APR CB100003 3" Stainless Steel Cat-back SRT Exhaust for Audi B5 S4

The APR CB100003 B5 S4 SRT Exhaust is a stainless steel, mandrel bent, cat-back exhaust. The APR exhaust begins after the two lower factory catalytic converters and is two 2.25" pipes that merge into one 3" pipe. The APR CB100003 SRT exhaust replaces the center muffler with a special side resonator. Compared to the APR Stealth exhaust, the APR SRT exhaust has a more aggressive sound and a distinctive note. With TIG welding, fully stainless construction, and CNC'ed hangers, you will not find a higher quality system on the market. APR's Audi S4 cat-back exhaust is also available in a quieter Stealth version, the Stealth exhaust helps to maintain the S4's subdued character. While louder than stock, it is not too loud to attract attention.

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  APR CD100002 Downpipes and Cats for Audi B5 S4  - Replace those restrictive factory cats with APRs high flow cats or testpipes!

 Other Items from Exhaust upgrades for Audi B5 S4

  Neuspeed 30.02.27 Race Series Titanium Exhaust for Audi B5 S4 - A full catback exhaust weighing under 9 Lbs!
  Neuspeed 30.02.28 Stainless Steel Cat-back Exhaust for Audi B5 S4 - Dual slash cut tips
  APR CB100008 3" Stainless Steel Cat-back Stealth Exhaust for Audi B5 S4  - APR offers two different sound levels of the B5 S4 exhaust.
  APR CB100003 3" Stainless Steel Cat-back SRT Exhaust for Audi B5 S4  - APR offers two different sound levels of the B5 S4 exhaust.
(APR Stealth exhaust pictured)
  APR CD100002 Downpipes and Cats for Audi B5 S4  - Replace those restrictive factory cats with APRs high flow cats or testpipes!